private void gridviewForm_Load(object sender, EventArgs e)
        {
                int row = 0;
                string ref_style = "";

                this.Text = "Check consistency for Italic words";
                this.dataGridView1.Columns[0].HeaderText = "Italic Words";

                object wUnit = Word.WdUnits.wdStory;
                object missing = System.Reflection.Missing.Value;
                object wChar = Word.WdUnits.wdCharacter;
                object pUnit = Word.WdUnits.wdWord;
                object wDirs = Word.WdCollapseDirection.wdCollapseStart;
                object wDire = Word.WdCollapseDirection.wdCollapseEnd;
                object wExt = Word.WdMovementType.wdExtend;

                object findtext = "";
                object matchcase = false;
                object matchwholeword = false;
                object matchwildcards = false;
                object soundslike = false;
                object matchwordforms = false;
                object forward = true;
                object wrap = Word.WdFindWrap.wdFindStop;
                object format = true;
                object replacewith = missing;
                object replace = false;
                object replaceAll = missing;
                object matchkashida = false;
                object matchdiacritics = false;
                object alehamza = false;
                object matchcontrol = false;
              

                prow.WrdApp.Selection.HomeKey(ref wUnit, ref missing);
                prow.WrdApp.ActiveWindow.Selection.Collapse(ref wDirs);
                prow.WrdApp.ActiveWindow.Selection.Find.ClearFormatting();
                prow.WrdApp.ActiveWindow.Selection.Find.Replacement.ClearFormatting();
                prow.WrdApp.ActiveWindow.Selection.Find.Font.Italic = 1;
                prow.WrdApp.ActiveWindow.Selection.Find.Text = "";
                prow.WrdApp.ActiveWindow.Selection.Find.Forward = true;
                prow.WrdApp.ActiveWindow.Selection.Find.Wrap = Word.WdFindWrap.wdFindContinue;
                prow.WrdApp.ActiveWindow.Selection.Find.Format = true;
                prow.WrdApp.ActiveWindow.Selection.Find.MatchCase = false;
                prow.WrdApp.ActiveWindow.Selection.Find.MatchWholeWord = false;
                prow.WrdApp.ActiveWindow.Selection.Find.MatchWildcards = false;
                prow.WrdApp.ActiveWindow.Selection.Find.MatchSoundsLike = false;
                prow.WrdApp.ActiveWindow.Selection.Find.MatchAllWordForms = false;
                while (prow.WrdApp.ActiveWindow.Selection.Find.Execute(ref findtext, ref matchcase, ref matchwholeword, ref matchwildcards, ref soundslike, ref matchwordforms, ref forward, ref wrap, ref format, ref replacewith, ref replaceAll, ref matchkashida, ref matchdiacritics, ref alehamza, ref matchcontrol) == true)
                {    
                    object sty = prow.WrdApp.Selection.get_Style();
                    Word.Style styleName = (Word.Style)sty;

                        dataGridView1.Rows.Add();
                        dataGridView1.Rows[row].Cells["Column1"].Value = prow.WrdApp.ActiveWindow.Selection.Text;
                        dataGridView1.Rows[row].Cells["Column2"].Value = prow.WrdApp.ActiveWindow.Selection.Paragraphs[1].Range.Text;
                        dataGridView1.Rows[row].Cells["Column3"].Value = "Click here";
                        row = row + 1;
                        prow.WrdApp.ActiveWindow.Selection.Collapse(ref wDire);
      
                }
                dataGridView1.Sort(dataGridView1.Columns["Column1"], System.ComponentModel.ListSortDirection.Ascending);
                prow.WrdApp.Selection.HomeKey(ref wUnit, ref missing);
            }
}

  It goes to to the corresponding paragraph where the particular italic word is located  



 private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {            
            if (e.ColumnIndex  == 2)
            {
                int paraCnt = 0;
                paraCnt = prow.WrdApp.ActiveDocument.Paragraphs.Count;
                ArrayList ls = new ArrayList();
                for (int z = 1; z <= paraCnt; z++)
                {
                    ls.Add(prow.WrdApp.ActiveDocument.Paragraphs[z].Range.Text);
                }

                for (int y = 0; y <= ls.Count - 1; y++)
                {
                    if (ls[y].ToString() != null)
                    {
                        if (ls[y].ToString().Trim() == dataGridView1.Rows[e.RowIndex].Cells[1].Value.ToString().Trim())
                        {
                            prow.WrdApp.ActiveDocument.Paragraphs[y + 1].Range.Select();
                        }
                    }
                }
            }          
        }